Results 251 to 260 of about 4,650,576 (300)

Interaction of Acoustic Waves with Bubbly Layer with Uneven Distribution of Bubbles

Lobachevskii Journal of Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gubaidullin, D. A., Nikiforov, A. A.
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Acoustics of bubbly sediments with a distribution of bubble sizes.

The Journal of the Acoustical Society of America, 1991
A model for a saturated, porous elastic medium containing bubbles of gas [J. Acoust. Soc. Am. 73, 409–417 (1983)] has been combined with a model for a bubbly liquid with a bubble population whose radii vary continuously over a known distribution [J. Acoust. Soc. Am. Suppl. 1 88, (1990)] to obtain an acoustical model for saturated sediments containing a
J. A. Hawkins, A. Bedford
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Vorticity distribution in barotropic recirculating bubbles

2nd AIAA, Theoretical Fluid Mechanics Meeting, 1998
Twodimensional high Reynolds number flows inside steady recirculating bubbles are studied by means of an asymptotic analysis as Re -> oo. The classical results about the asymptotic vorticity distribution of an incompressible recirculating flow with constant viscosity proved by Batchelor are re-examined in the framework of the new approach.
PACIORRI, Renato, SABETTA, Filippo, FAVINI, Bernardo   +2 more
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Bubble‐Size distributions and flow fields in bubble columns

AIChE Journal, 2002
AbstractBubble‐size distributions and flow fields in bubble columns are calculated numerically. The population balance is simplified and reduced to a balance equation for the average bubble volume. Models developed predict the rate of bubble breakup and coalescence based on physical principles.
F. Lehr, M. Millies, D. Mewes
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Bubble size distribution in the sparger region of bubble columns

Chemical Engineering Science, 2002
Abstract It is well known that the gas distributor can play an important role on the evolution of the bubble size distribution (BSD) in gas–liquid reactors, strippers and absorbers. Therefore, the main subject of the present work was to study the influence of sparger design and process parameters on the BSD in the sparger region of the considered ...
POLLI M., DI STANISLAO, MARCO SANTE, BAGATIN R., ABU BAKR E., MASI, MAURIZIO   +4 more
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Bubble Size Distribution in Oil‐Based Bubble Columns

Chemical Engineering & Technology, 2008
AbstractA practical population balance model was used to evaluate the bubble size distribution in a bubble column. In addition, the bubble size distribution in the bubble column was measured at different gas velocities by photography and analysis of the pictures.
S.‐S. Homayouni, M.‐R. Mehrnia, N. Mostoufi, M. Rajabi, A. Yazdani   +4 more
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Bubble size and bubble velocity distribution in bubble columns under industrial conditions

The Canadian Journal of Chemical Engineering, 2017
Bubble column reactors are widely used in many industrial applications due to their simplicity and safety of operation. Despite these advantages, the design and scale‐up of bubble column reactors is still challenging especially for industrial conditions at elevated pressure and temperature.
Bothe, Melanie, Christlieb, Marc-Andreas, Hoffmann, Marko, Tedjasukmana, Osmond, Michaux, Frank, Rollbusch, Philipp, Becker, Marc, Schlüter, Michael   +7 more
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MATTER DISTRIBUTION IN A FALSE VACUUM BUBBLE

Modern Physics Letters A, 1992
The dynamics of matter distribution that may contaminate a false vacuum bubble is considered. In the case of uniform dust distribution, it is shown that the distribution eventually collapses (expands) if the matter energy density is greater (smaller) than twice the false vacuum energy density.
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Estimation of bubble size and distribution and the effects of bubbles on high-frequency transmission

2008 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, 2008
Measurements of bubble size and distribution in the ocean bubble layer, wind speed, and variation of ocean environment were made continually over a four-day period in an experiment conducted in the South Sea of Korea during 17-20 September 2007. Theoretical background of bubble population model and bubble effects on sound speed indicate that bubble ...
Guoqing Zhou 0002, Taebo Shim
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Variational theory of bubbly media with a distribution of bubble size—I. Liquids

International Journal of Engineering Science, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hawkins, J. A., Bedford, A.
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